Cisco Systems Cisco 12008 Awaiting a user command to boot the system manually

			Performing Other Configuration Tasks
	Table 4-3	Definition of Bits in the Software Configuration Register (Continued)
	Bit Number	Hexadecimal Value	Meaning/Function
	11 and 12	0x0800 to 0x1000	Defines the console baud rate (the default setting is
			9600 baud).
13		0x2000	Boots the default Flash memory software if the
			network boot fails.
14		0x4000	IP broadcasts do not have network numbers.
15		0x8000	Enables diagnostic messages and ignores the
			contents of NVRAM.

1. OEM stands for original equipment manufacturer.

Table 4-4 specifies the content of the boot field, which defines a source for booting the default Cisco IOS software image required to run the router. The content of the boot field is specified as a binary number.

Table 4-4 Definition of Bits in Boot Field of Software Configuration Register

Boot Field Bits	Meaning
00	On power up, the system remains at the ROM monitor prompt (rommon>),
	awaiting a user command to boot the system manually.
01	On power up, the system automatically boots the first system image found in
	the onboard Flash memory single inline memory module (SIMM) on the RP.
02 to 0F	On power up, the system boots automatically from a default Cisco IOS
	software image stored on a TFTP server in the network. For this setting, it is
	assumed that the Ethernet port on the RP is configured and operational. A

default Cisco IOS software image is typically kept on a Cisco “Help Desk” server in the network for ready access by anyone needing a boot image. This setting also enables boot system commands that override the default filename.

Observing System Startup and Performing a Basic Configuration 4-35